Some Lake Basins in France

Abstract

I REGRET that, through some inadvertence on my part, the name of the author of the “Atlas des Lacs Français,” mentioned in my letter (p. 341) is wrongly printed. It should be Delebecque. In a letter received from M. Delebecque, he informs me that “the direction of the arrow on the map of Lake Léman is not exactly N., but N. 7° W.” He informs me also that the curious funnel-shaped hole at the northern end of the Lake of Annecy, which I suggest may be a submerged swallow hole, is the site of a spring. This fact, however, need not be fatal to my suggestion, because the changes in level might convert what was once a swallow hole into a spring. At present water at one time flows up from the dolinas of the Julian Alps, at another it drains off down them.